An AQMesh air quality monitoring sensor was installed at a monitoring site in East Hartford, Connecticut to evaluate its performance tracking gas, particulate and meteorology data over a year long time frame. Hourly data for O3, NO2, PM2.5, PM10, temperature and relative humidity were compared to reference monitors located at the same site. The full downloadable dataset used is located here Download CSV.

Sensor Details

AQMesh Specifications

Possible Configuration Evaluated Configuration Cost Data Access Power Supply Considerations Reference Monitors Compared
Particulates: PM1, PM2.5, PM10
Gases: NO, NO2, O3, CO, CO2, TVOC, SO2, EtO
Meteorology: WS/WD, Baro Pressure, Temp, RH
Particulates: PM2.5, PM10
Gases: NO2, O3
Meteorology: Temp, RH
Sensor: $6,663.00
Sonic Anemometer: $4,998.00
Solar Configuration: $1,967.00
Cellular Communications (Annual): $420.00
API or Dashboard: $1,260.00
Basic Download (CSV), API, Web Application
(Data stored locally on SD card)
Smart Solar Pack, Rechargeable NiMH battery, Mains DC Power Time Resolution: 1 minute to 1 hour intervals
Dimensions: 430 (H) x 220 (W) x 170 (L) mm (including antenna)
Weight: 2-2.7 kg
O3: Teledyne N400
NO2: Teledyne T500U
PM2.5 & PM10: Teledyne API T640X
Temp & RH: AutoMet 580

Setup


Timeseries Comparison

AQMesh hourly data for O3, NO2, PM2.5, PM10, temperature and relative humidity were compared by quarter to reference values (Q1: January-March, Q2: April-June, Q3: July-September, Q4: October-December).

O3

Quarter 3 (2023)

Quarter 4 (2023)

Quarter 1 (2024)

Quarter 2 (2024)

NO2

Quarter 3 (2023)

Quarter 4 (2023)

Quarter 1 (2024)

Quarter 2 (2024)

PM 2.5

Quarter 3 (2023)

Quarter 4 (2023)

Quarter 1 (2024)

Quarter 2 (2024)

PM 10

Quarter 3 (2023)

Quarter 4 (2023)

Quarter 1 (2024)

Quarter 2 (2024)

Temperature

Quarter 3 (2023)

Quarter 4 (2023)

Quarter 1 (2024)

Quarter 2 (2024)

Relative Humidity

Quarter 3 (2023)

Quarter 4 (2023)

Quarter 1 (2024)

Quarter 2 (2024)


Correlation Comparison

AQMesh and Reference Correlation

Gases

O3

NO2

Particulates

PM2.5

PM10

Meteorology

Temperature

Relative Humidity

Results Summary

*Outliers were defined from the AQMesh dataset using the IQR Method (all data points more than 1.5 below the the lower bound quartile or above the upper bound quartile).